rabbitmq-server fails to start after hostname has changed for first time

Question

I am using django-celery for my django project. Last day I have changed my computer\'s hostname (I am using Ubuntu 12.04, edited file \'/etc/hostname\'), and after next restart

Answer 1

Remove RabbitMQ database: rm -rf /var/lib/rabbitmq/*

This action solves the problem. I believe somewhere in dumps stored a record with correspondence of nodes host names and ips. This fact causes contradiction if some hosts changed unexpectedly.